Hello Flthc,
Your Soft-Close door cinch motor is not working - as you know.
Do you see a Diagnostic Trouble code in your instrument panel?
I looked in my Service Manual and it says - 'The cinch motor is part of the door latch control module and is not replaceable separately'.
If you can provide a diagnostic trouble code, I can tell you what process the manual says to use in order to check the electrical function.
Richard